Thermal Image

A thermal image shows the temperature of objects – colouring cool surfaces shades of blue through green, warm as yellow, up to hot coloured red and white.

In this thermal image our house is on the right. We can compare it to next door’s on the left, which is typical for this type of property; it has double glazed windows, but the solid walls are not insulated.

The thermal image helps us to see how much heat is being lost from different parts of the building, and where improvements might be made. Red and white areas are hotter, so more heat is being lost – which means higher bills and more pollution.